<?php
$host="db.seng.uvic.ca"; // Host name
$username="se321g01"; // Mysql username
$password="un8bi2YM"; // Mysql password
$db_name="se321g01"; // Database name
$tbl_name="user_info"; // Table name

// Connect to server and select databse.
mysql_connect("$host", "$username", "$password")or die("cannot connect");
mysql_select_db("$db_name")or die("cannot select DB");

// username and password sent from form
$myusername=$_POST['username'];
$mypassword=$_POST['password'];

// To protect MySQL injection (more detail about MySQL injection)
$myusername = stripslashes($myusername);
$mypassword = stripslashes($mypassword);
$myusername = mysql_real_escape_string($myusername);
$mypassword = mysql_real_escape_string($mypassword);

$sql="SELECT * FROM $tbl_name WHERE email='$myusername' and passwd='$mypassword'";
$result=mysql_query($sql);

// Mysql_num_row is counting table row
$count=mysql_num_rows($result);
// If result matched $myusername and $mypassword, table row must be 1 row

if($count==1){
// Register $myusername, $mypassword and redirect to file "login_success.php"
$sql="SELECT * FROM $tbl_name WHERE email='$myusername' and passwd='$mypassword'";
$result=mysql_query($sql);
$row = mysql_fetch_array($result);
if($row['admin']==0){
header("location:./profile.php?uid=" . $row['uid'] . "&tab=0");
}
else{
header("location:../admin/profile.php?uid=" . $row['uid'] . "&tab=0");
}
}
else {
header("location:../login.html");
}
?>
